how can I fix the AC not blowing cold air in my Ford Explorer Fifth Generation (2011-2019)?

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

589 words

Problem Statement

Learn how to diagnose and fix AC not blowing cold air in Ford Explorer 2011-2019. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

HVAC

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before working on the AC system.

Symptoms

•AC system blowing warm air
•AC compressor not engaging
•Unusual noises from the AC system
•Ice buildup on the evaporator or refrigerant lines
•Reduced airflow from the vents
•AC warning light illuminated on the dashboard

Diagnostic Steps

1
Inspect the AC settings to ensure the temperature is set to a cold setting and that the AC is turned on.
2
Use an OBD-II scanner to check for any error codes related to the AC system.
3
Visually inspect the AC compressor for any signs of damage or leaks.
4
Check the refrigerant level using a manifold gauge set.
5
Test the AC compressor relay and fuses for continuity.
6
Inspect the cabin air filter for blockages that may affect airflow.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•OBD-II scanner
•Manifold gauge set
•Safety goggles
•Gloves
•Screwdriver
•Socket set
•Torque wrench
•Refrigerant recovery machine

Parts Required

•Refrigerant (R-134a)
•Cabin air filter
•AC compressor

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Diagnostic Steps

1
Inspect the AC settings to ensure the temperature is set to a cold setting and that the AC is turned on.
2
Use an OBD-II scanner to check for any error codes related to the AC system.
3
Visually inspect the AC compressor for any signs of damage or leaks.
4
Check the refrigerant level using a manifold gauge set.
5
Test the AC compressor relay and fuses for continuity.
6
Inspect the cabin air filter for blockages that may affect airflow.

Solution

1. Preparation

Gather all necessary tools and parts.
Disconnect the battery before working on electrical components to ensure safety.

2. Recharge the AC System

Tools Required: Manifold gauge set, refrigerant (R-134a), safety goggles, gloves.
Connect the low-pressure side of the manifold gauge to the AC service port.
Start the engine and turn on the AC to the highest setting.
Check the pressure readings on the gauge. If low, add refrigerant until the recommended pressure is reached (typically between 25-45 psi).
Monitor the system for any signs of leaks while recharging.

3. Replace the Cabin Air Filter

Tools Required: Screwdriver (if applicable).
Locate the cabin air filter housing, typically behind the glove box.
Remove the glove box if necessary to access the filter.
Remove the old cabin air filter and inspect it for dirt and blockages.
Install the new cabin air filter, ensuring it is oriented correctly.

4. Inspect and Replace the AC Compressor (if necessary)

Tools Required: Socket set, torque wrench, refrigerant recovery machine (if necessary).
Remove the serpentine belt from the AC compressor.
Disconnect the electrical connector and refrigerant lines from the compressor.
Unbolt the AC compressor from its mounting brackets.
Install the new AC compressor by reversing the removal steps, ensuring all connections are secure.
Recharge the AC system as described in Step 2.